People don't buy Facebook ads or make Facebook accounts because Mark Zuckerberg is there, but they do buy Ed Sheeran music because it has the name "Ed Sheeran" written on it.

That said, I'm not into music and assumed he was a footballer.

> That said, I'm not into music and assumed he was a footballer.

Same (minus the footballer part). When I was made aware of Ed Sheeran, he was already the biggest artist in the world. But that says something about me and my general disinterest for music and pop culture, not Sheeran’s popularity.